Flash
Enchant creature
Enchanted creature gets -X/-0, where X is the number of cards in your graveyard.

This land enters tapped.
When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
: Add or .

Return target creature card from your graveyard to the battlefield.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

This creature can't be blocked except by three or more creatures.
: Return this card from your graveyard to the battlefield tapped with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Calamity of Cinders deals 6 damage to each untapped creature.

, Sacrifice this creature: Counter target spell.

Aberrant Tinkering — When this creature enters and at the beginning of your upkeep, each Horror you control gains all activated abilities of target artifact an opponent controls until end of turn. You may spend blue mana as though it were mana of any color to activate those abilities.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
Return target nonland permanent to its owner's hand. If you have the city's blessing, you may put that permanent on top of its owner's library instead.

Riot (This creature enters with your choice of a +1/+1 counter or haste.)
When this creature enters, choose up to one —
• This creature fights target creature you don't control.
• Destroy target land with an activated ability that isn't a mana ability.

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
: Add .

When this creature enters, for each spent to cast it, draw a card.
When this creature enters, for each spent to cast it, each opponent discards a card.
When this creature enters, for each spent to cast it, it gets +1/+0 and gains trample and haste until end of turn.

When this creature enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Enchant creature
Enchanted creature gets +1/+1.
When enchanted creature dies, return that card to its owner's hand.

(: Add .)

Discard any number of cards at random. Creatures you control get +1/+0 until end of turn for each card discarded this way.

Create two 1/1 white Spirit creature tokens with flying.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying
When this creature enters, look at the top four cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Creatures you control have vigilance.
+1: You gain 3 life.
−2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly choose a card name. You may turn this conspiracy face up any time and reveal that name.)
Creatures you control with the chosen name have "When this creature dies, you may pay . If you do, create a tapped 2/2 black Zombie creature token."

The next creature card you play this turn can be played as though it had flash.
Draw a card.